Standard Ignition SLS-90 Brake Light Switch

Brake Light Switch for Jeep Applications

Standard Ignition SLS-90 is a brake light switch built for dependable stoplamp operation in select Jeep vehicles. It uses a metal finish, a male connector, and blade terminals to support a direct electrical connection in the brake pedal circuit.

Key Features

• Brake light switch for stoplamp circuit operation
• Metal housing and metal finish
• Male connector with 1 connector interface
• 2 male blade terminals
• Copper alloy conductors for strong electrical conductivity
• Spring and contact design helps reduce arcing for longer service life
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition SLS-90 is engineered for vehicles that need consistent brake pedal switch performance. The robust housing and copper alloy conductors are selected to maintain low-resistance electrical flow, while the internal spring and contact arrangement is designed to limit arcing during repeated brake applications. This brake light switch is a direct-fit style service part for Jeep Grand Wagoneer, Cherokee, Comanche, Wagoneer, Wrangler, and Scrambler applications listed below. This part cross-references F4821 for the same application.

Vehicle Fitment

• Fits 1991 Jeep Grand Wagoneer, N/A
• Fits 1984-1990 Jeep Cherokee, N/A. Not compatible with vehicles equipped with cruise control.
• Fits 1986-1990 Jeep Comanche, N/A. Not compatible with vehicles equipped with cruise control.
• Fits 1984-1990 Jeep Grand Wagoneer, N/A. Not compatible with vehicles equipped with cruise control.
• Fits 1984-1990 Jeep Wagoneer, N/A. Not compatible with vehicles equipped with cruise control.
• Fits 1987-1990 Jeep Wrangler, N/A. Not compatible with vehicles equipped with cruise control.
• Fits 1981-1985 Jeep Scrambler, N/A. Not compatible with vehicles equipped with cruise control.

Common Issues It Can Address

• Brake lamps that do not illuminate when the pedal is pressed
• Intermittent stoplight operation caused by worn switch contacts
• Delayed or inconsistent brake signal output
• Electrical resistance issues at the brake pedal switch circuit
• Switch wear from repeated pedal cycling

Installation Notes and Tips

Verify connector style, terminal count, and vehicle fitment before installation. Confirm that the vehicle is not equipped with cruise control where the fitment notes exclude that configuration. Inspect the brake pedal switch adjustment and electrical connector condition during service to help ensure proper stoplamp activation.

Quality Assurance

Standard Ignition manufactures ignition and electrical service parts with in-process quality control from component selection through final assembly. SLS-90 is tested for both mechanical actuation and electrical switching performance before release.